.rt-web-intro-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.rt-header-page-container {
  border: 1px solid red;
  flex: 1;
  .rt-header-box {
    border: 1px solid green;
    height: 44px;
    line-height: 44px;
    background-color: #1b1b1b;
    width: 70%;
    margin: 0 auto;
    color: #fff;
    & > div {
      border: 1px solid red;
      &:first-child {
        float: left;
        font-size: 16px;
        & > span {
          border: 1px solid red;
        }
      }
      &:last-child {
        float: right;
        font-size: 12px;
        padding-right: 10px;
      }
    }
  }
}